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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2171943911

Certificate GIA 2171943911

Diamond specifications and retailer prices

From $6,264 SGD
$4,900 USD
As of November 1, 2026
Save $7,148 SGD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,412 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2171943911. Listed at 23 retailers as of October 30, 2026, with prices from $6,264 to $13,412, a $7,148 spread on the same certified stone. NZ Jewellers lists it at $13,412. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2171943911
Dimensions7.12 × 5.74 × 3.98 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.12 mm5.74 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2171943911
Side View
Table 67.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $13,412 SGD|Low: $5,812 SGD|High: $13,412 SGD|Avg: $8,535 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$6,149 SGD
Retailer 10$6,336 SGD
Retailer 12$6,705 SGD
Retailer 9$6,761 SGD
Retailer 3$7,264 SGD
Retailer 4$7,264 SGD
Retailer 2$7,692 SGD
Retailer 11$7,927 SGD
Retailer 7$8,763 SGD
Retailer 6$9,852 SGD
Retailer 5$11,813 SGD
NZ Jewellers$13,412 SGD

45 data points across 12 retailers

23 retailers$6,264 SGD to $13,412 SGD

Retailer 1
-
$6,149 SGD
$4,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$6,264 SGD
$4,900 USD
View
B+
Retailer 3
-
$6,336 SGD
$4,956 USD
View
B
Retailer 4
-
$6,596 SGD
A$7,938 AUD
View
B
Retailer 5
-
$6,705 SGD
$5,245 USD
View
Final sale: no returns
B
Retailer 6
-
$6,761 SGD
$5,289 USD
View
B
Retailer 7
-
$6,788 SGD
$5,310 USD
View
B
Retailer 8
-
$7,174 SGD
$5,612 USD
View
B
Retailer 9
-
$7,264 SGD
$5,682 USD
View
B
Retailer 10
-
$7,264 SGD
$5,682 USD
View
B
Retailer 11
-
$7,264 SGD
$5,682 USD
View
B
Retailer 12
-
$7,692 SGD
£4,738 GBP
View
B
Retailer 13
-
$7,793 SGD
A$9,378 AUD
View
Retailer 14
-
$7,927 SGD
A$9,539 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
$7,977 SGD
$6,240 USD
View
B
Retailer 16
-
$7,977 SGD
$6,240 USD
View
B
Retailer 17
-
$8,233 SGD
$6,440 USD
View
B
Retailer 18
-
$8,382 SGD
$6,557 USD
View
B
Retailer 19
-
$8,763 SGD
€6,528 EUR
View
Retailer 20
-
$8,841 SGD
$6,916 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$9,852 SGD
ZAR 124,500 ZAR
View
B
Retailer 22
-
$11,813 SGD
£7,276 GBP
View
Most Expensive
C
NZ Jewellers
5e857763-58db-40dd-b925-02ba4a7cf632 · Oct 30
$13,412 SGD
$10,491 USD
View
22 more retailers have this diamond
Prices start from $6,264 SGDSave up to $7,148 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.51ct Radiant
$6,264 SGD